Gas-engine.



C. DE LUKAGSEVIOS GAS ENGINE.

APPLIOATION FILED JUNE 25 1906 99 863 I Patented July 18, 1911.

2 SHEETSSHEET 1.

N 14y N W/TNESSE Ks lNVENTOR 1 0. DE LUKAGSE'VICS.

GAS ENGINE.

APPLICATION FILED JUNE 25, 1906.

Patented July 18, 1911.

w E E H 41. 1 H E E m WITNESSES ATTORNEY hand part at i, and the right hand nniTnn STATES PATENT ornion.

CHARLES DE LUKACSEVICS, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF AND GEORGE W. MORGAN, 51%., OF NEW YORK, N. Y.

GAS-ENGINE.

ceases.

Specification of Letters Patent.

Patented July 18, i9] 1.

Application filed June 25, 1906. Serial No. 323,220.

To allwhom it may concern:

lie it known that 1, CHARLES on Lunacsnrics, a citizen of the United States, and resident of New York, county of New vYork, Stat-e of New York, have invented certain new and useful Improvements in Gaal lngines, of which the following is a speciiica tion.

The present invention relates to improve ments in gas engines, the details of which 'will he frilly set forth in the specification I 23, of the engine and parallel to the axis ol' which follows.

By way of introduction it may be said i is a transverse section on line 2-2 of Fig. 1.

of the engine of my invention, and Fig. 2 Y

The extension 15 passes into a longitudinal slot, 20, arranged in the \'lindrical'tube T and S. The said slot represents by its length the throw of the piston during any given reciprocation. and by its width from :31 to 22 (see Fig. 2) it shows by what means the extension is held rigidly in a given path from end to end ol its movement, so that the piston, while it has .a reciprocating motion, cannot rotate.

lnside the cylinder 7, S, is a main shaft.

the piston 12. On this shaft is rigidly mounted a drum, 24, having a groove, 2.3. which is so arranged as to change its (lll'Qc tion six times upon the periphery of the drum.

It will be understood that the reciprocations of the piston will operate the drum by Virtue oi the fact that the roller '16 sets into the groove 25 and by cooperating with the,

The frame of the machine consists off whatmay be called a three-part cylinder,

the middle part being shown at l, the left part at 3.

The line dividing 1 and 2 shown at 4, and j the line dividing l and 3 is shown at 5. i These are simply the jlll'lClllOIl lines between the end parts and the middle part. The three are joined together and compressed one against another by means of end flanges, 6, (3, at the opposite ends of a central tube or sleeve, 7, 8, these ends being joined on the line 9. Bolts, l0, 10, run through the central tube, and when the nuts, Ill, '11, at the ends of these bolts are screwed tight. the flanges 6, 6 are brought against the ends of the parts 2, 3, thereby compressing the elements 1, 2 and 3 into a single frame. When this frame has been thus put together there are provided three separate cylinder chambers in which a piston, 12, reciprocatcs. Along the centralportion the piston-head is provided with a flange, 13, which operates as? the piston for the central cylinder, while thetwo ends, 12. 12, operate as the pistonheads for the two end cylinders already mentioned.

In Fig. ,l i seated in an ex part of the piston 12,

walls thereof causes a rotation of the drum and consetpiently a rotary motion oi the shaft 23 itself. It. will be clear that each roltc of the piston causes one-sixth part 01 a revolution of the drum and the shaft 23. For this reason a single rotation of the shaft calls for six strokes of the piston.-

'E The shaft 23 is seated in roller-bearings, 2b.

28, to reduce the friction while the drum is also provided with ball-thrust bearings shown at 29, 29.

It now remains to describe the mode in which the piston is caused to reciprocat hunder the influence of gas explosions.

The gas enters at 30 and passes through a valve cl'laull'wr, 3], into a combustion chamber, 32, and a channel, 33, whence it passes (see Fig. l) to the cml'm'nlnicating emnbustion chamber, which surrounds the cyl inder, 7. in passing from tlrovalw chamber ill into the combustion chamber 32, the gas traverses an inlet valve. 55. With opposite sides of the combustion chamber Bl connnunicatc igniting plugs, 30, 711'. Besides the combustion chamber 34- there exists at the opposite end a similar combustion chamher. Ill). and at intermmliale points on oppositosidcs of the extension 13. are combuslion chambers 37 and 3h. 'lhesc communi rate severally with combustion chambers 39 and 40. Each ol the combustion chambers 37, 38, is provided. as already stated. with igniting plugs on opposite sides thereof", while the igniting chan'lbers 5), 40, are each ating the valve 55.

. fi'iiai'ded by an inlet valve 55 and an outlet valve in a manner similar to combustion chamber 32.

The nil-ans for igniting the gas in the several chambers consist ola coimnntator, it"), of the usual type mounted on a shaft, 4-1, which shaft. carries a cam, 4-2, for oper- A similar construction inaa exist at. the right hand side of the machine, and it is not thought; necessary to give\furlhcr details. Assuming: I that the first ignition takes place in chamber 34-, the cylindrical piston will 9c. driven to the right until it occupies the position shown. for example, in Fig. 1. When this action takes place, the gas in combustion chamber 35 is compressed. Then, the conunutato r acts to cause the ignition of the gas in the chamber 35, Whereupon the piston is forced haclnvard and the gas is compressed inthe chanihcr 37, while the gas in, the chamber 3% is pushed out, the cam 51 being so arranged as to open the exhaust valve with which it cooperates so as to let out. the hurned gas from the chamber 34. The next action of the commutator is that of igniting the gas in the con'ihustion chamhcr 3?, which causes the-piston to he moved again to the right,- coniprcssing the gas in the combustion chamber 38, and suclin gas into the chamber 3i through the valve 55, "which valve is operated by the cum 42 at the appropriate time. After this, the in chamber 38 is ignited and. the action from that point is repeated, 1' already set forth.

It is obvious that, in the particular construction shown, six explosions are made in order to produce a. sin le rotation of the driving shaft. I do not. imit myself to precisely six turns in the groove 25, but; may

select any suitable number, although I pre- I ferlo make use of either four or six turns.

.It; will thus be seen that in order to produce single rotation of the driving shaft, the power utilized in each explosion may be very much less than has usually-been the case. In other words, I may utilize small amounts of gas at. the different combustion chambers, and thereby produce a. smaller heating eliec'r, and at thesanie time securea very etlicient production of power as applied to the piston and the driving shaft. At. each rotation of the shaft, six applications of power are made instead of what is usually a single power application for two revolutions.

The effective operation of my sin explosions oi. gas, as applied to the apparatus shown in the drawings, is cquivalei'it to What would ordinarily be theresult of twelve cylinders of the usual kind. By virtue oi.

' the facts already recited the ordinary reducing gears made use of in apparatus of this kind are no longer nccessar this being tine senses to the fact that the present apparatus pro-- rides for a low speed of rotation and that. the power is developed at a lower rather than a high speed.

The parts shown at 52, 52 are packing. do vices intended to prevent leakage. This will he clearly understood by those skilled in the art.

The cylindrical piston 12, 12. logcllun with the flange 13, secured thereto or forzuing part thereof, forms an important. part. of ihe, invention herein described. By virtue of the fact. that the ends of the piston are represented by the cnds'of a cylinder of considcrable size, the which expands under explosion by means of the commutator against one or the other ends of the saidpiston. is provided with-a considerable surface against which the explosion can take place, so that the eii'ect of the gasercplosion is an cliicient one. Moreover, the flange it which itself acts as a piston tor the expand in gas from the chambers 37 and 35'} also atlorils a good purchase for the cx 'ian-zlingg gas to act. upon, and the total etifect oi the explosions of gas upon the cylindrical piston 1'2, 12. with its flange 13 is of great cliiciency. I

1 claim as my invention:

1. In an'engine, a reciprocating tubular piston open at its ends and formed 'llll a plurality of piston-heads. a revoluhle shaft.

mounted within said piston parallel to its axis, a cylinder within which said piston reciprocates, and means @(HIIKiilHg'; said shaft with said piston whereby to operate the shaft by the i'cciprocations of the piston.

2. In an engine, a reciprocating tubular piston open at its ends and formed with a plurality of piston heads, a rcvolublc siaft mounted within said piston, parallel co its axis, means intermediate the outermost pis ton heads connecting saidshaft and piston whereby to operate said shaftby tho reciprocations of the piston, and a cylinder surrounding said piston.

3. In an engine, a reciprocating tubular piston open zit-its ends and formed with a plurality of piston heads, a revolublc shaft mounted within and parallel with the axis of said piston a drum carried by said shaft: intermediate the ends of said piston and pro- .vicled with a peripheral cam groove, means carried by said tubular piston, and having engagement with said groove, whereby the shaft is rotated through the reciprocation of said piston, and a cylinder formed with an annular chamber Within which chamber the piston rcciprocates. I

4'. In an engine, a reciprocating open ended tubular piston formed with a plurality of concentrically arranged piston, heads,

a double walled cylinder between whose walls the piston reciprocates and provided with a plurality ofiocmbnshon chambers,

assess means for supplying explosive charges to said chambers, means-for eflectingexplosion of said charges sequentially within. said chambers, a revoluble shaft mounted within and parallel with the axis of said piston, a drum provided with a peripheral cam groove mounted on said shaft, and means carried by said piston adapted to operate within said groove whereby to rotate said shaft by the reciprocations of the piston.

5. In an engine, a reciprocating open ended tubular piston formed with a plurality of concentrically arranged piston heads, a cylinder surrounding said piston and provided with sleeves fitting within either end thereof, and connected together at their inner ends, said cylinder and sleeves forming a plurality of combustion chambers containing said piston, a revoluble shaft mounted within and parallel w ith the axis of said piston, and means connecting said shaft and piston whereby said shaft is operated by the reoiprocations of the piston.

6. In an engine, a reciprocating hollow piston compnsmg a plurality of concentrl- 'cally arranged piston heads, a cylinder surrounding said piston and having sleeve portions fitting within the opposite ends of said hollow piston, said sleeves and cylinder providing a plurality of combustion chambers,

a slot within said sleeves intermediate the 7 ends thereof, a revoluble shaft mounted within said sleeves, and means carried by said piston and shaft whereby the latter is operated through the reciprocations of the former, said piston means operating within the slot of said sleeves whereby to prevent partial rotation of said piston.

, 7. In a gas engine or like apparatus,]a tubular piston open at each end and having a flange or enlargement intermediate said ends, a cylinder having a chamber of a diameter which accommodates said flange during movement of the piston, a shaft parallel with the axis of said piston, a rotatable member mounted on the shaft, and a projection on the inner side of said tubular. piston which engages said rotatable member and thereby turns said shaft.

8. In a gas engine or like apparatus, a

tubular piston open ateach end anc provided with a flange or enlargement intermediate said ends, a shaft parallel to the axis of said piston, a rotatable member mounted on the shaft, a projection within said piston opposite its exterior flange or enlargement or ranged to engage with said rotatable memher and operate said shaft, and a-series of combustion chambers associated one with each end of the piston and one with opposite sides of said flange or enlargement.

Signed at New York, in the county of New York, and State of New York, this 21st day of June, A. D. 1906.

CHARLES on LUKACSEVIGS. Witnesses:

Gnomes H. Srocnnmnon,

Tnos. 'H. Brown. 

